{
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                "node_name"       : "rkisp"
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                "node_name"       : "rkzoom"
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                "stream_input"    : "zoom_ctl_in",
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                "stream_fmt_out"  : "image:nv12"
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            "node_opts": {
                "node_name"       : "rockx"
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                "stream_input"    : "eptz_face_detect_in",
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            "node_opts": {
                "node_name"       : "rkeptz"
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                "opt_ai_algorithm": "rockx",
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                "node_name"       : "rkrga"
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                "node_name"       : "link_output"
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                "stream_input"    : "uvc_link_out_in",
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                "stream_fmt_out"  : "image:nv12"
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            "node_opts": {
                "node_name"       : "link_output"
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                "stream_fmt_out"  : "image:nv12"
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            "node_opts": {
                "node_name"       : "rockx"
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                "stream_input"    : "face_detect_in",
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                "opt_rockx_model" : "rockx_face_detect_v2_h"
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            "node_opts": {
                "node_name"       : "link_output"
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            "node_opts_extra": {
                "node_buff_type"  : 1,
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                "stream_input"    : "st_asteria_link_in",
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                "stream_fmt_out"  : "nn:stream_ai"
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        },
        "default_mode_link": "none",
        "link_0": {
            "link_name"          : "uvc",
            "link_ship"          : "0,7"
        },
        "link_1": {
            "link_name"          : "nn_isp",
            "link_ship"          : "2,8-8,11,1000"
        },
        "link_2": {
            "link_name"          : "nn_linkout",
            "link_ship"          : "10,8-8,11,1000"
        },
        "link_3": {
            "link_name"          : "uvc_zoom",
            "link_ship"          : "1,3,6,7-6,10"
        },
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            "link_name"          : "eptz",
            "link_ship"          : "1,5,3,6,7-2,4,5-6,10"
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    }
}